naturally the bank is afraid because if we keep the money in the bank every month must be cut our balance while in blockchain there is never any cuts unless we transact, so people will be attracted to the full blockchain in the bank.
That is true that banks are afraid but they their own startegies how to cope up with these. But at this point banks are trying to handle. For now they can't kill easily cryptocurrencies because many people prefers bitcoin as their job and cryptocurrencies as the formation of transaction. Aside from easy way to transact it is also an advantages for all.
Banks has nothing to do with bitcoin and
the survival of other crypto currencies rather these digital currencies had made the survival of banks very tough. People are not ready to store their money in their bank accounts because the interest rate offered is very low as compared to the rate of profits offered by digital currencies. Well, I don’t thinks so there is any currency which is able to beat bitcoin. Bitcoin is the legendary coin.
How can it possibly be so? Apart from cryptocurrencies, there are a lot of other investment options like stocks, bonds, ETF's, derivatives, and many others which I'm simply not familiar with. It is said the whole derivatives market is mindbogglingly huge and estimated at over a quadrillion dollars. The whole cryptomarket with its cap around half a trillion dollars is simply minuscule beside these markets. But they didn't kill banks somehow, so why should crypto? Bitcoin and others aren't used as currencies anyway, so what real impact could they produce on the banking system?
Here you can see big Bitcoin is in comparison with other markets. The chart is somewhat dated, I know, but still:
